ADVENT TECHNOLOGIES HOLDINGS, INC. — All Filings
385 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K/A
10-Q
25-NSE
3
4
4/A
424B3
424B4
424B5
425
8-A12B
8-K
8-K/A
CERT
CORRESP
DEF 14A
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
NT 10-K
NT 10-Q
POS AM
PRE 14A
RW
S-1
S-1/A
S-3
S-4
S-4/A
S-8
SC 13D
SC 13G
SC 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 25-NSE | — | 0001354457-26-000064 | Jan 21, 2026 | — |
| 25-NSE | — | 0001354457-26-000062 | Jan 21, 2026 | — |
| 8-K | 8-K | 0001829126-26-000309 | Jan 15, 2026 | Jan 8, 2026 |
| 10-Q | 10-Q | 0001829126-25-009258 | Nov 17, 2025 | Sep 30, 2025 |
| NT 10-Q | NT 10-Q | 0001829126-25-009230 | Nov 14, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001829126-25-008952 | Nov 10, 2025 | Nov 5, 2025 |
| 8-K | 8-K | 0001829126-25-008803 | Nov 3, 2025 | Oct 29, 2025 |
| 8-K | 8-K | 0001829126-25-008497 | Oct 29, 2025 | — |
| 8-K | 8-K | 0001829126-25-008326 | Oct 22, 2025 | — |
| DEF 14A | DEF 14A | 0001829126-25-007733 | Sep 30, 2025 | Oct 22, 2025 |
| 8-K | 8-K | 0001829126-25-007376 | Sep 12, 2025 | Sep 11, 2025 |
| 8-K | 8-K | 0001829126-25-007169 | Sep 4, 2025 | Aug 28, 2025 |
| EFFECT | — | 9999999995-25-002763 | Aug 27, 2025 | — |
| 424B3 | 424B3 | 0001829126-25-006762 | Aug 27, 2025 | — |
| CORRESP | — | 0001829126-25-006680 | Aug 25, 2025 | — |
| UPLOAD | — | 0000000000-25-009038 | Aug 25, 2025 | — |
| 8-K | 8-K | 0001829126-25-006667 | Aug 22, 2025 | Aug 18, 2025 |
| S-1 | S-1 | 0001829126-25-006432 | Aug 18, 2025 | — |
| 8-K | 8-K | 0001829126-25-006402 | Aug 18, 2025 | Aug 14, 2025 |
| 10-Q | 10-Q | 0001829126-25-006102 | Aug 12, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0001829126-25-006101 | Aug 12, 2025 | Aug 6, 2025 |
| 8-K | 8-K | 0001829126-25-005927 | Aug 7, 2025 | Aug 1, 2025 |
| S-8 | S-8 | 0001829126-25-005159 | Jul 18, 2025 | — |
| 8-K | 8-K | 0001829126-25-004892 | Jul 3, 2025 | Jul 1, 2025 |
| 10-Q | 10-Q | 0001829126-25-004811 | Jun 30, 2025 | Mar 31, 2025 |
| 10-K | 10-K | 0001829126-25-004289 | Jun 6, 2025 | Dec 31, 2024 |
| 8-K | 8-K | 0001829126-25-003930 | May 27, 2025 | May 22, 2025 |
| NT 10-Q | NT 10-Q | 0001829126-25-003647 | May 14, 2025 | Mar 31, 2025 |
| 8-K | 8-K | 0001829126-25-002729 | Apr 17, 2025 | Apr 16, 2025 |
| 8-K | 8-K | 0001829126-25-002674 | Apr 15, 2025 | — |
| 3 | FORM 3 | 0001829126-25-002319 | Apr 2, 2025 | Aug 30, 2024 |
| 4 | FORM 4 | 0001829126-25-002320 | Apr 2, 2025 | Dec 31, 2024 |
| NT 10-K | NT 10-K | 0001829126-25-002209 | Mar 31, 2025 | Dec 31, 2024 |
| 3 | FORM 3 | 0001829126-25-001722 | Mar 11, 2025 | Nov 4, 2024 |
| 3 | FORM 3 | 0001829126-25-001721 | Mar 11, 2025 | Dec 31, 2024 |
| 3 | FORM 3 | 0001829126-25-001720 | Mar 11, 2025 | Aug 30, 2024 |
| 3 | FORM 3 | 0001829126-25-001719 | Mar 11, 2025 | Nov 4, 2024 |
| 3 | FORM 3 | 0001829126-25-001718 | Mar 11, 2025 | Aug 30, 2024 |
| 8-K | 8-K | 0001829126-25-001681 | Mar 11, 2025 | — |
| 8-K | 8-K | 0001829126-25-000009 | Jan 2, 2025 | Dec 31, 2024 |
| 10-Q | 10-Q | 0001829126-24-008577 | Dec 27, 2024 | Sep 30, 2024 |
| 8-K/A | 8-K/A | 0001829126-24-008371 | Dec 18, 2024 | Oct 24, 2024 |
| DEF 14A | DEF 14A | 0001829126-24-008194 | Dec 10, 2024 | Dec 31, 2024 |
| 8-K | 8-K | 0001829126-24-007869 | Nov 27, 2024 | — |
| 8-K | 8-K | 0001829126-24-007837 | Nov 26, 2024 | — |
| NT 10-Q | NT 10-Q | 0001829126-24-007541 | Nov 14, 2024 | Sep 30, 2024 |
| 8-K | 8-K | 0001829126-24-007371 | Nov 8, 2024 | Nov 4, 2024 |
| 8-K | 8-K | 0001829126-24-007083 | Oct 29, 2024 | — |
| 8-K | 8-K | 0001829126-24-006964 | Oct 24, 2024 | — |
| 8-K | 8-K | 0001829126-24-006933 | Oct 23, 2024 | Oct 18, 2024 |